Integrated Maven to the project.

To build the war file using maven, use 'mvn clean install' command.
The project structure is changed to
src/main
	|
	|java
	|    |org
	|       |sangraama
	|	  |controller
	|	  |coordination
	|	  |....
	|	  .
	|	  .
	|
	|resources
	    |assets
	    |conf